Lopez’s husband, Hugo, was driving a Honda CRV around 4:50 p.m. when the vehicle suddenly accelerated, Hudson County Sheriff Frank X. Schillari said in a press release. Hugo, 83, could not stop the car and it crashed into at least four vehicles and the back of a tractor-trailer that was stuck in traffic. Lopez’s daughter, Juana Lopez, was in the backseat. Authorities do not know how fast the vehicle was traveling.

Lopez was in the passenger seat, the release said. She was killed instantly in the crash.

Hugo suffered a broken hand and Juana had broken ribs and lacerations to her right eye, right hand and right wrist, the release said. They were taken to the Jersey City Medical Center for treatment and overnight observation.

No summonses or charges have been issued.

The Sheriff’s Office has not ruled out mechanical failure, the release said, and will conduct a complete mechanical inspection of the CRV. Initial evidence shows that speed and road conditions may have been a factor, the release said, and at least one of the other vehicles involved left the scene before police arrived.